Editor for Fantasy Novella

Clarissa Hastings is an average teenager until she uncovers a secret that her family concealed from her, she discovers she is a Mythical Sorceress. Omen place The Curse Of Perdition upon the people in a world called Astrinica, this threatens her race and they will soon face extinction. Will she be able to stop him or will she crumble under the pressure? - Blurb
Word count - 23561
Below I will attach a few sample paragraphs to give you a few for my writing style.
I am unsure about the budget section, as I do not know the average cost for editing, so please recommend pricing to me.